Lubricator



H. D. BOYER.

LUBRICATOR.

APPLlcAnoN FILED ^PR.4.1914. RENEwED JAN. 17.1919.

Patented May 27, 1919.

2 i 5. W//////m/n/%w f nu: Non-ms crees ca. nova-uma. wasumcmu, n. c

'UNITED' STATES PATENT OFFICE.

vHARRISON I). BOYERfOF PHILADELPHIA, PENNSYLVANIA, ASSIG-NOR, BY MESNE ASSIGNMENTS, TO LEANDER W. RIDDLE, OF GLEN RIDDLE, PENNSYLVANIA.

Specification of Letters Patent.

LUBRICATOR.

Patented May 27, 1919.

"Il, Yapplicati@ inea April 4, 1914, serial No. 829,568. Renewed January 17, 1919. serial No. 271,763

To 'all 'whom t may concern Be it known that I, HARRISON D. BOYER,

'Y a citizen of the United States, residing at new Y and useful tion.

Philadelphia, in the county of Philadelphia 'and State of Pennsylvania, have invented Improvements in Lubricators, of which he following is a specifica- My invention relates to new and useful improvements in lubricators, and has for its object .to provide an exceedingly simple and effective construction which will provide for the feeding of grease or other lubricant ing 2O toitlie bearings of' machinery, the principal object of my present invention being to overcome the necessity of threading the outsideof the cup, and the inside o the cap, 'which usually threads therein, thus provida closer t between these members to prevent the leakage of the lubricant therebe- 4 tween.

[With these ends in view this invention consists in the details of constuction and combination of elements hereinafter set .forth and then specifically designated by the claims. y Inorder that'those skilled in the art to which this invention'appertains may understand how to make and use the same, I will describe its construction in detail, referring by numerals to the accompanying drawings forming a part .of ythis, specification, in which- 4 Figure 1, is a central vertical section of a lubricator made in accordance with my im- Y provement Fig. 2, is a side elevation of the cap; and

Fig. 3, is a plan view of the cap.

Fig. 4, is a view similar to Fig. 1 illustrating the position of the parts when the contents of the lubricator is under pressure.

In carrying out my invention as e'm bodied, 1 represents the base or stand of a lubricator having formed therewith the threaded nipple 2 which is adaptedto be screwed into the bearing to be lubricated, and the upper portion of this case carries the thread post 3, said post being adapted ,to receive the sleeve 4 which is internally threaded to correspond therewith. This sleeve is here shown as secured to the cap 5, but may Vbeing adapted to slide within the cup 6, the latter being secured upon the base in any be formed therewith, said cap The top of the cap has corrugations'11 formed thereon so asto increase its flexibility, and on top of this cap so as to cover the corrugations is placed a cover 12, said cover being in the form of an ordinary box base top having a central opening 13 therein, and pivot sockets 14 for the reception of the tangs 15 of the signal 16. -Projecting upward from the topv 11 is a lug 17 which bears upon the lower edge ofthe signal in `such manner as to elevate said signal when the top is in its normally elevated position.

When the lubricating material is placed in the lubricator and the sleeve is threaded downward or inward, the central portion ofthe top of the cap will be drawn inward as plainly shown in Fig. 4 so as to increase the distance or space between the top of the cap and the cover'12rin the regionof the f central parts thereof, thereby removing the pressure of the lug 17 from the underside of the signal 16, permitting the latter to swing downward 'or to a horizontal position. This action can only take place when the lubricator is filled with or contains a lubricant and while the outer circumference of the top of the cap 5 remains in its last position by the pressure of thetrapped air, the central ortion is drawn inward by screwing' the sleeve upon the threaded post 3 and said signal 16 will remain in the horizontal position so long as suiiicient pressure is maintained within the cap, but when this pressure is relieved by the expulsion of the lubricant. from the lubricator, the top will again flex to its normal position and cause the outer circumference of the top of the cap 5 to move to a position which will bring said outer circumference into the same plane as the central portion, of the top of the'cap and this action will shorten the distance be- Y shown, as these tween the eentralportio'ns of the-top ofthe cap andthe cover l2 which 'will'fcause the. the signal, indicating that lug 17 to elevate thecup needs tobe setup.Y Y Y v Of conrseI do not wish*l tobe limited to Vof construction Vas here the exact details parting from the 'spirit of-my invention.

'Having thus (fully described my invention, whatIclaim 'a'sfnew and useful, s`

1. In a device a [base havingy ay threaded V:post I projecting Vupwardly therefrom,y a Vcup carried .by 'the Vbase, acap itte'dtoslide in the oup,arsleeve projecting downward 4from the* top of the cap and adapted tothread on thefpost, a"

semaphore earriedV by `the lcap vand Ameans Yalso carried bythe cap for Operatingsaid semaphore.

'2. VIn a deviceV of Ythe"charat'zter described.,`

a base having a Athreaded postfprjecting upwardly therefrom, Vaf'cup carried by 'thej Ybase, 'a cap jfitted "to slide in theV cup'and 'havi g threaded engagement fwith the ,post,

the Vtop of ysaidrcap being" fleXible,a top carried bythe-cap, top and means ing ltherein,#and a fthread'ed Ipost formed integralv therewith, said post-*having` a trans# verse opening the'rethron'ijgh communicating lfwithfthe opening-inthe base, and also 'hav-Y 'ing a shoulder,

carried by `the topfofY the cap and project` ing from the center thereof, said.A sleeveVV adapted-to thread upon'the post.

of the character described a semaphore pivoted j to the carried -by'the flexible top 'foroperating'saidsemaphore. -Y Q 3. In a device ofthe character.described Va base having Ya central'lon'gitudinal Vopen- L, '4. AIn aflubricato'r afc'apa semaphore carried bythe"capfandfmeans also carried by.Y Y

' 45 5. I-n a lfubricatorafeap, t'hertop'.-offwhichY..fY Y Vis fleXible,-fae,top carried 'byftheca'p, afsema'; L phore pivoted to the-top,and means carried may bevaried' withinthefb limits ofthe appended claims without'de-Y the capV 'for operatingi said semaphore. Y

ythe capfor operating said semaphore.

Y VV6. In a lubricator a cap having a flezibleV top,-'a2top carried by'said cap, lsaid 'capand Y.

top having portions spaeedrapart, a semaf' cap y for operatingsaid semaphore. A* Y '7. 'A lubricator consisting of two menn bers, `one of Vwhich 'is movable with relation to p the other,fsaidmovable;memberjhaving a lflexibletopfa top.memberlhavingr acen` tral V"Opening jndpivot `'sockets,secured4 to in, the ,pivot sockets,` .and means i *carried` 'by thefie'xible top Yfor 'operating said -s'emap'h'ore.. i 8.;A ylubricator!consisting of a cup ineinber, a cap Vmember cooperatingftherewith, Y. Y y corrugationsf'formed"on'the'top offthe 'cap Y member'- to increase itsflezibilit .a "lugpro jecting ffrolnfsaifd" flexible, top of. the'vgcap 1 Y y member, 'a jtopA 'niembIeIT'lIaVing ,a .central Y vopening Y'and pivot sockets secured'ftothe eapme1nber,and al semapho' keineswegs; Y

said tangsbeing mounted-'inthe pivot'sollek-k Y etssothatthe lng bearsupontl'ielower edge 'l Y so as to elevate the saine the Llub,ricator isf-ref Y Y o f said. semaphore,

c In ,testimony whereof, I ha've 'herento i:

subscribing witnesses.4 v Y aiiixed inyisignatureintherpres'enee o'fftwo Q 

